import React, { Component } from 'react'
import {NavLink,Route } from "react-router-dom";
import Header from './components/Header'
import About from './pages/About';
import Home from './pages/Home';

export default class App extends Component {
  render() {
    return (
      <div>
        <div className="row">
          <div className="col-xs-offset-2 col-xs-8">
            <Header a={1}/>
          </div>
        </div>
        <div className="row">
          <div className="col-xs-2 col-xs-offset-2">
            <div className="list-group">
              {/*  1.在React中靠路由链接切换组件(编写路由链接) */}
              {/*
                  Link升级为NavLink后就可以动态追加类名添加样式
                  默认追加active类名,bootstrap恰好给active加了高亮
                  
                  activeClassName='atguigu'
              */}
                <NavLink activeClassName='atguigu' className="list-group-item"  to="/about">About</NavLink>
                <NavLink activeClassName='atguigu'className="list-group-item" to="/home">Home</NavLink>
            </div>
          </div>
          <div className="col-xs-6">
            <div className="panel">
              <div className="panel-body">
                {/* 2.注册路由 */}
                  <Route path='/about' component={About}/>
                  <Route path='/home' component={Home}/>
              </div>
            </div>
          </div>
        </div>
      </div>
    )
  }
}
